Dumbbell holder stands support



FIG. 1 is a perspective view of a dumbell holder stands support, showing my new design, wherein the broken line showings of the dumbells are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a perspective view of the dumbbell holder stands support;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a dumbbell holder stands support, as shown and described. 